ReputationDefender, previously owned by Reputation.com, will continue to operate under its brand; CEO Rich Matta will continue to lead the company. Financial terms of the deal were not disclosed.

"It’s an interesting opportunity that is at the heart of what’s becoming more important to people these days: that their reputation is defended online," said Mark Penn, managing partner of Stagwell Group. "With so much trolling, smearing, and fake news online, we thought it fit quite well both with the other kinds of companies we have and to expand into this area."

The company will join Stagwell’s investment portfolio, which includes marketing, research, digital, and communications firms. Reputation.com will continue to focus on its other SaaS platforms that include business listings, online review management, surveys, operational analytics, and social media management, Stagwell said in a statement.

ReputationDefender was founded in 2006 and offers online reputation and privacy tools for individuals and small businesses.